Turning BLOB into PURE GOLD

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Opis:
A client came to my shop and left me a gold blob. Can I uncover its secrets?

PART 2 SILVER: https://youtu.be/b76SJfgiZIM

So @NileRed , how did I do? If any of you are interested in a project like this from an actual chemist, I highly recommend you check out his video: https://www.youtube.com/watch?v=37Kn-kIsVu8